Shiite Muslim women hold the holy Koran on their heads during overnight ritual prayers in Tehran in the early hours of September 09, 2009, marking the start of the Lailat al-Qadr (Night of Power) ceremonies which celebrate the night in which the holy Koran was first revealed to the Prophet Mohammed through the angel Gabriel. Observant Muslims pray all night long for mercy and salvation in a ritual known locally as 'Ehyaa' or 'Revival', one of the most important ceremonies of the holy month of Ramadan. AFP PHOTO/STR (Photo credit should read -/AFP/Getty Images)